Which of the following errors can be eliminated by reciprocal measurements in differential levelling?
I. Error due to earth curvature
II. Error due to atmospheric correction
a) Both I and II
b) Only I
c) Only II
d) Neither I nor II
Which of the following errors can be eliminated by reciprocal measurements in differential levelling?
I. Error due to earth curvature
II. Error due to atmospheric correction
a) Both I and II
b) Only I
c) Only II
d) Neither I nor II
